   <input type="text" (keyup)="onSearch()" [(ngModel)]="searchText" >
<ng-container>
    <span *ngIf="objectData">{{objectData[searchCol]}}</span>
</ng-container>


<ul>
    <li *ngFor="let item of list">
        <span>{{item[searchCol]}}</span>
        <button (click)="pickItem(item)">选择</button>
    </li>
</ul>



